Package org.apache.commons.collections4.functors

Class ChainedClosure<E>

java.lang.Object

org.apache.commons.collections4.functors.ChainedClosure<E>

All Implemented Interfaces:

Serializable, Closure<E>

public class ChainedClosure<E>
extends Object
implements Closure<E>, Serializable

Closure implementation that chains the specified closures together.

Since:

3.0

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
ChainedClosure(Closure<? super E>... closures)	Constructor that performs no validation.

Method Summary

Modifier and Type	Method	Description
static <E> Closure<E>	chainedClosure(Collection<? extends Closure<? super E>> closures)	Create a new Closure that calls each closure in turn, passing the result into the next closure.
static <E> Closure<E>	chainedClosure(Closure<? super E>... closures)	Factory method that performs validation and copies the parameter array.
void	execute(E input)	Execute a list of closures.
Closure<? super E>[]	getClosures()	Gets the closures.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ChainedClosure

public ChainedClosure(Closure<? super E>... closures)

Constructor that performs no validation. Use chainedClosure if you want that.

Parameters:

closures - the closures to chain, copied, no nulls

Method Details

chainedClosure

public static <E> Closure<E> chainedClosure(Closure<? super E>... closures)

Factory method that performs validation and copies the parameter array.

Type Parameters:

E - the type that the closure acts on

Parameters:

closures - the closures to chain, copied, no nulls

Returns:

the chained closure

Throws:

NullPointerException - if the closures array is null

NullPointerException - if any closure in the array is null

chainedClosure

public static <E> Closure<E> chainedClosure(Collection<? extends Closure<? super E>> closures)

Create a new Closure that calls each closure in turn, passing the result into the next closure. The ordering is that of the iterator() method on the collection.

Type Parameters:

E - the type that the closure acts on

Parameters:

closures - a collection of closures to chain

Returns:

the chained closure

Throws:

NullPointerException - if the closures collection is null

NullPointerException - if any closure in the collection is null

execute

public void execute(E input)

Execute a list of closures.

Specified by:

execute in interface Closure<E>

Parameters:

input - the input object passed to each closure

getClosures

public Closure<? super E>[] getClosures()

Gets the closures.

Returns:

a copy of the closures

Since:

3.1